closes#1818
Previously, the markdown of some chapters was converted to Jade markup
to support the conditional exclusion of TS prose parts in Dart
chapters. This commit reverts some of that back to clean markdown,
thanks to a few custom directives.
- Dart code: fix issues raised by @thso during review.
- Dart code: remove "show x" clauses from imports.
- Dart add docsync config file.
- Prose: make consistent use of _Http variables; otherwise use "HTTP".
- Prose: add links to the demos list.
* _heroesUrl as static const
New Dart prose, update Dart and Ts code
+ guide/server-communication/ts: update to docs and example code
+ guide/server-communication/dart: new prose, update example code
+ ignore all npm-debug.logs
+ make Jade ul li TOC elements more compact.